1st law
What is inertia?
Inertia is the tendency of an object to resist changes in its state of motion.
What is the formula for force?
The formula for force is F=m⋅a (Force = mass × acceleration).
What does the 3rd Law state?
The 3rd Law states that for every action, there is an equal and opposite reaction.
How do we see these laws in cars?
We see these laws in cars when they accelerate, brake(inertia).
Who is Newton?
Newton is Sir Isaac Newton, an English mathematician and physicist.
What happens to an object at rest?
An object at rest stays at rest unless acted upon by a net external force.
What does the 2nd Law state?
The 2nd Law states that the acceleration of an object increases with increased force, decreases with increased mass and is in the same direction as the force
What is an example of action-reaction?
Example of action-reaction: When you jump off a small boat, you push the boat backward. or Rocket going into space, and the gas going down
How do these laws apply to sports?
These laws apply to sports by explaining how athletes move and react (e.g., a shot putter using the 2nd Law for maximum distance).
What are the 3 laws?
The 3 laws are law of inertia, law of force, and law of action and reaction
Give an example of the 1st Law.
Example: A book on a table remains at rest until someone pushes it.
How is acceleration calculated?
Acceleration is calculated using the formula A=F/M (Acceleration = Force / mass).
How do rockets use the 3rd Law?
Rockets use the 3rd Law by expelling gas downwards, which propels the rocket upwards.
Explain how airplanes fly using these laws.
Airplanes fly using these laws as lift is generated through the action of air traveling over the wings creating an equal and opposite reaction.
When were these laws formulated? (give the answer)
These laws were formulated in the late 17th century (1687).
What is the significance of the 1st Law?
The significance of the 1st Law is that it establishes the concept of a reference frame and motion.
What is the relationship between mass and acceleration?
The relationship is that if mass increases, acceleration decreases for a given force; conversely, if mass decreases, acceleration increases.
Describe how the 3rd Law applies in sports.
In sports, when a player kicks a ball, the action of the foot hitting the ball generates a reaction that propels the ball forward.
How do safety features in cars rely on these laws?
Safety features like seat belts and airbags rely on these laws to protect passengers during sudden stops (inertia).
How did Newton's laws change science?
Newton's laws changed science by providing understanding of motion and forces.
How does mass affect inertia?
Mass affects inertia; the greater the mass, the greater the inertia.
Explain a real-life example.
Real-life example: Pushing a shopping cart; if you push harder (more force), it accelerates faster.
What is the importance of the 3rd Law?
The importance of the 3rd Law is that it explains the interactions between objects and is fundamental in designing vehicles and machines.
Discuss the role of these laws in space exploration.
In space exploration, understanding these laws is crucial for launching spacecraft and maneuvering in zero gravity.
When do you see these laws in action?